Rule or gage.



N0. 815,944. PATENTED MAR. 27', 1906.

R. w. DOUGLAS.

RULE 0R GAGE. APPLICATION 1 11.31) APR. 1a. 1905.

UNITED srArns PATENT. orrron.

RAIFORD W. DOUGLASQOF SPOKANE, WASHINGTON.

' RULE OR GAGE.

Patented March 27, 1906.

To all whom it may concern: 7 Be it known that I, RAIFORD W. DO GLAS,

of Spokane, in the county of Spokane and state of Washington, have invented certain nying drawings, which orm part of this specifor use in setting thecutter-b'lades on rotary cutter-heads 'of molding and planing machines, and for this purpose the gage is provided with transverse lines by which the cut- I ters can be set any desired distance from the edge of the head and with longitudinal scores, marks, or lines which areproperly numbered and by which the blades can be at 'onceadjusted to cut anydesired depth.

The device is also adapted for use as a longitudinal measure or rule.

The device is provided with a T-head which projects over both edges and over one side of-the main body of the gage to the projecting portions of said head, forming stops by which the gage can be instantly positioned relative to the cutter-head on which the bladesare to be adjusted or to the object to be measured. The said head is adjustable longitudinally of the body of the gage, and for this purposeit is connected with a slide which is scored correspondingly with the transverse scores of the gage-body and is also provided with central longitudinal scores which form the inner limit score for the cutterblades. By means of this adjustable head and slide the gage can be elongated so that it can be used on cutter-heads of different lengths up to the maximum of the gage, and it is also adapted tobe used as a small T- square and. as an ordinary measuring-rule.

The invention consists in the novel construction of the gage as hereinafter-described and claimed, and'as illustrated in the accompanying drawings.

In said drawin s, Figure 1' is an obverse view of the gage, s owing the T-head slightly extended. Fig. 2 is anedge view thereof Fig. 3 is a plan viewof the reverse side. Fig. 4 is a transverse section on lines 4 4, Fig. 1.

The body A ofthe gage is preferably madeof a flat strip of boxwood, the ends of which may be reinforced by metal caps a, as shown. This body is provided with a central longitu- ,placed edgewise against the object, as indiprovided with longitudinal scores. tral score or line E on the obverse face of the dinal preferably dovetailed groove a, in 3 which is fitted a slide B, preferably of brass, to the outer end of which is attached the T- head C, which head is flush on its upper surface with the upper or obverse face of the body A, but is much thicker than the body and projects below the same, as shown in Fig. 2, so as to form a stop or abutment prac tically like a T -square, so that when this head 0 is placed against the edge of a body the sideedges of the gage-body will be at right anglesto' the said edge, as is obvious. The head 0, moreover, is longer than the body A is wide, so that the ends of the head project beyond the edges of the body, as shown at c, and form stops or abutmems by which the edges of the gage can be trued, if

cated in Figs. 1 and 3.

The body of the gage is divided by transverse scores D into inches and half-inches,

and the slide 0 is similarly scored, so that when the slide is entirely closed the scores D in inches or fractions of inches of any object 9 can be readily measured by the gage, and by extending the slide B objects up'to approximately twice the length of the body A can be measured.

In order to adapt. the device-for setting the Y cutter-blades or cutter-heads, the body is:

The cengage is made upon the slide B, and thenext adjacent longitudinal lines correspond with the meeting edges of the outer face of the slide engaged. These longitudinal lines are differently spaced, it will be observed, at each side of the central line E. The outermost lines 6 give the lineof adjustment of the blades when they are,to be set to merely plane boards. The next lines 6 are a thirty-second of an'inoh removed from lines e and are also for surface-planing. The next lines (pro grossing inwardly) e will give one-sixteenth;

IIO

of-an-inch cut of the blades. The next lines e will give one-eighth-of-an-inch cut. The next lines 6 will give one-fourth-of-an-inch cut. The next lines 6 will give five sixteenths-of-an-inch cut, and the next lines e would give three-eighths-ofan-inch cut, and the central line E will give one-half-of-an-inch out. These lines 6 e e e e e e are arranged on opposite sides of the central line E, so that either edge of the gage can be used in setting the cutter-blades, and if the blades are to cut more than one-half inch the lines in the opposite set are utilized for the purpose of adjusting the blades for deeper cuts. The fractional numerals on the gage indicate the different depths of cuts.

The reverse side of the blade is longitudinally scored or lined similarly to the obverse side, and the central line E is also scored on the reverse side of the blade, as the slide does not show on that side when closed. The reverse side of the slide may also be transversely scored like the obverse side.

Preferably quarter-inch scores extend to the lines 6 The eighthofan-inch scores extend to the lines (2 and the sixteenth-inch scores extend to the lines 6 which thus facilitates the reading of the scale in either direction on the body. The inches and fractions of inches that are mostly used are numbered as shown. 7

In order to prevent the slide slipping when adjusted, screws 9, provided with flat milled heads 9, are attached to the body near the ends of and adjacent to the groove a, so that the heads g overlap the slide B. The screws 9 may be tapped into threaded extensions a of caps a, as shown. Preferably washers g are interposed between the heads g and the slide and body. By means of these clamps the slide can be located in any position in which it is adjusted, and as I have two of these clamps the slide can be secured in or to either end of the body.

The operation of the device will be obvious from the foregoing description and the drawings, Fig. 3 showing one method of using it to adjust or set the cutters on a rotary cutterhead, the cutter S being shown adjusted to make a half-inch cut, and the cutter T being adjusted to cut a three-eighths-of-an-inch cut. It will be noted that the lines E and e are respectively more than a half-inch and three eights of an inch from the inner edge of the gage; but they are calculated with reference to the outer line 6, the distance between the outer line 6 and the adjacent edge of the gagebody being the distance the blade must project beyond the edge of the cutter-head H before it will become effective at all. As this distance is provided for on the ga e, the workman does not have to calculate t e projection of blade and add it to the desired depth of cut and then measure the total distance between body of cutter-head and edge of blade in order to properly set the latter and instead merely alines the cutting edge with that longitudinal score which indicates the de th of cut. The gage being double, or mar ed on each edge and both sides, it can be used at both ends of the head and with horizontal or vertical heads with equal facility, and the head C acts as a s uare as perfectly when the slide is exten ed from the body as it does when the slide is closed.

It is needless and unnecessary to describe all the uses of the gage, the foregoing being suficient, and its utility as a foot or linear measure is apparent.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a gage, the combination of a body provided with suitable scores and alongitudinal groove, a slide fitted in said groove and scored correspondingly with the transverse score of the body; a T-head attached to the outer end of said slide and projecting beyond both edges of the slide and also below the lower face thereof, and means for locking the slide, substantially as described.

2. In a gage, the combination of a body having longitudinal scores for gaging the set of cutters and transverse scores indicating inches and fractions thereof, and a longitudinal groove; with a slide fitted in said groove, a head on one end of the slide projecting beyond both edges of the body and also below the under surface thereof, said slide being also scaled, and means whereby the slide may be locked in any adjusted position, substantially as specified.

3. In a gage, the combination of the body provided with scores and having a longitudinal groove, a slide fitted in said groove, a T- head attached to the outer end of said slide and adjustable thereby relative to the body of said head, and projecting beyond both edges of the slide and also below the lower face thereof, and means for locking the slide, substantially as described.

4. A cutter-setting gage provided with a longitudinal groove, a central longitudinal score E, and differently-spaced scores 0, a, e e e, e and e, on each side of the central score, and transverse scores indicating linear measure; with a head at one end of the body projecting beyond both edges of the body and also below the under surface thereof, substantially as described.

In testimony that I claim the foregoing as my own I aflix my signature in presence of two witnesses.

RAIFORD W. DOUGLAS.

In presence of ARTHUR E. DOWELL, LILLIAN E. VVITI-IAM. 

